Will an omark handle a 300wm or 300wsm?

Quick · Post by **Quick** » Fri Apr 13, 2012 7:32 pm

Hey,

Just chasing an answer to the above question.

Cheers.

Shaun.

Post by **AlanF** » Fri Apr 13, 2012 7:42 pm

Shaun,

No direct experience, but I suspect 300WM might be too long. And WSM might be okay sleeved. I've seen too many shooters struggling with Omark bolt lift to think it could be done by just opening up the bolt face.

Alan

johnk · Post by **johnk** » Fri Apr 13, 2012 9:21 pm

Shaun,

I can't get a measure of the diameter of the head of an Omark bolt because of the 3 lugs, but the wall thickness at the head recess is no more than .050" - down closer to .040" in places. With a head size of .532-.535" compared with the .308 head size of .472", your magnums are going to leave you no more than .020" wall thickness were the recess machined out for the larger head.

I would reckon that you'll be hard pressed to find a competent gunsmith willing to play roulette with those margins.

John

KHGS · Post by **KHGS** » Fri Apr 13, 2012 9:53 pm

I have one statement to make "don't do it"! Such a conversion would be irresponsible.
Keith H.

ratshot · Post by **ratshot** » Fri Apr 13, 2012 11:47 pm

Ive seen 30 06 ack on omarks one of which was sleaved . an 06 would be max IMO and you would have to pick the right action

Quick · Post by **Quick** » Sat Apr 14, 2012 10:21 am

Thanks for the info guys. I was just wondering if its been done or is possible. Cheers.